General Dynamics Electric Boat:PARENT_COMPANY:General Dynamics####American submarine NR-1:SHIP_BEAM:3.8 m####American submarine NR-1:BUILDER:General Dynamics Electric Boat####General Dynamics Electric Boat:LOCATION_CITY:Groton, Connecticut
General Dynamics is the parent company of the General Dynamics Electric Boat Co. out of Groton, CT. The GD Electric Boat Co built the American sub called NR-1 which has a 3.8 m beam.